Quena wrote:
I read about a tree in the American Southwest that, during a drought,
dries up completely except for a small sliver of bark, which contineus
to grow on the side of the otherwise dead trunk.

What is this tree called? I found an unlabelled pictu

http://www.forceacademy.com/Imagesto...esert_tree.jpg

Many kinds of tree will grow like the one shown here, if
sufficiently damaged but never quite girdled. This one looks
to be a juniper.

Una Smith

Los Alamos National Laboratory, MS K-710, Los Alamos, NM 87545